poor performance with Intel X520 card

[Eugene Grosbein]

10.07.2020 13:45, Patrick Lamaiziere wrote:

> Hello,
> 
> That is mostly for the record but it looks like the intel X520 is not
> very good and generates a high level of interrupts.
> 
> On a router / firewall with 500 Kpps in input (dropped by pf) is enough to put the CPUs at
> 100% busy.

[skip]

> Well, do you think another NIC cards can help to reach a better pps rate ? I think 500 Kpps is quite low for such a machine.

I'm sure pf is the bottle-neck. Try testing such card without any packet filter enabled and you'll see great difference definitely.